Mainline Pokemon games are renowned at this point for the subtle hints and nods at future releases planned for the future, with the trend starting a long time ago and never stopping since. These small clues about what is coming next are often minuscule features that would simply go unnoticed for the longest time without anyone suspecting it, such as Pokemon Brilliant Diamond and Shining Pearl possibly hinting at Pokemon Scarlet and Violet through sets of flowers. A great example of these hidden gems came with Pokemon Ultra Sun and Ultra Moon, which featured an in-game poster of what was going to be Gigantamax Toxtricity from Pokemon Sword and Shield, a long time before the creature was even officially revealed.
Fans have been carefully going through all the various releases to date to find possible connections between those and Pokemon Scarlet andViolet in hope of finding something worth speculating about in the news drought since the announcement trailer aired. Something that caught the players' attention is that the male protagonist in Pokemon Ultra Sun and Ultra Moon could possibly have a hidden reference to Fuecoco's existence, which would make sense timeline-wise, considering that very early concept art for Gen 9 was probably being made then. If this is the case, however, then it's also worth investigating whether the other starters got the same treatment — particularly the newly beloved Grass kitty, Sprigatito.
Pokemon Scarlet and Violet 'Leak' Deciphered by Fan
Pokemon Ultra Sun and Ultra Moon could have included an easter egg to reference Fuecoco's design further down the line, which could be seen in the male protagonist's shoes. These shoes looked like crocs, and they sported a motif that was very similar in color
Read more on gamerant.com